DD ISO-PAS 17712:2003 pdf download Freight containers — Mechanical seals
Scope
This Publicly Available Specification (PAS) establishes uniform procedures for the classification, acceptance.and withdrawal of acceptance of mechanical freight container seals. lt provides a single source of informationon mechanical seals which are acceptable for securing freight containers in international commerce.
This Publicly Available Specification is not applicable to special-purpose seals, such as fibre-optic andsophisticated electronic seals.
2 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
2,1
security seal
passive, one-time locking device that is used to provide a reliable indicator of tampering (unauthorizedremoval or attempted removal) or entry
NOTEIn addition, by virtue of its construction, the security seal provides limited resistance to an intentional orunintentional attempt to open it and enter the freight container that is sealed with the seal. Security seals requireinspection to indicate whether tampering has occurred or entry has been attempted.
2.2
high security seal
security seal that is constructed and manufactured of material such as metal or metal cable with the intent to
delay intrusion
NOTEHigh security seals generally must be removed with quality bolt cutters or cable cutters. They requireinspection to indicate whether tampering has occurred or entry has been attempted.
2.3
indicative sealseal that is constructed and manufactured of material that can easily be broken by hand or by using a simplesnipping tool or shear
NOTEIndicative seals require inspection to indicate whether tampering has occurred or entry has been attempted
3 Mechanical seal types and requirements
3.1 Types of mechanical seal
3.1.1 Wire seals
Wire seals consist of a length of wire secured in a loop by some type of seizing deviceEXAMPLESCrimp wire, fold wire and cup wire seals.
3.1.2 Padlock seals
Padlock seals consist of a locking body with a bail attachedEXAMPLESWire shackle padlock (metal or plastic body), plastic padlock and keyless padlock seals
3.1.3 Strap seals
Strap seals consist of a metal or plastic strap secured in a loop by inserting one end into or through aprotected (covered) locking mechanism on the other end.
3.1.4Cable seals
Cable seals consist of a cable and a locking mechanism, On a one-piece seal, the locking or seizingmechanism is permanently attached to one end of the cable. A two-piece cable seal has a separate lockingmechanism which slips onto the cable or prefabricated cable end.
3.1.5 Bolt seals
Bolt seals consist of a metal rod, threaded or unthreaded, flexible or rigid, with a formed head, secured with aseparate locking mechanism.
3.1.6 Cinch or pull-up seals
Cinch or pull-up seals are indicative seals consisting of a thin strip of material, serrated or non-serrated, with alocking mechanism attached to one end. The free end is pulled through a hole in the locking mechanism anddrawn up to the necessary tightness. Cinch or pul-up type seals may have multiple lock positions. Theseseals are generally made of synthetic materials such as nylon or plastic. They should not be compared tosimple electrical ties.
Twist seals3.1.7
Twist seals are made of steel rod or heavy-gauge wire of various diameters, which is inserted through thelocking fixture and twisted around itself by use of a tool.
3.1.8 Scored seals
Scored seals consist of a metal strip which is scored perpendicular to the length of the strip. The strip ispassed through the locking fixture and bent at the score mark. Removal of the seal requires bending at thescore mark which results in breakage of the seal.
3,1.9Label seals
Label seals are frangible seals consisting of a paper or plastic backing with adhesive. The combination ofbacking and adhesive are chosen to cause the seal to tear when removal is attempted.
3.1.10 Barrier seals
Barrier seals are designed to provide a significant barrier to container entry. A barrier seal may, for exampleenclose a portion of the inner locking rods on a container. Barrier seals may be designed to be reusable.
DD ISO-PAS 17712:2003 pdf download
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